http://tech-recipes.disqus.com/Cookbook of Tech TutorialsenMon, 31 Jan 2005 13:02:51 -0000http://www.tech-recipes.com/rx/697/unix-advanced-octal-file-permissions-with-chmod/#comment-2768721Unices and applications use the setgid and setuid bits so the octal may need to be 4 digits, especially if using UniCenter or AIX.<br>AIX directories often have setgid set sometimes.<br><br>Using chmod 0755 or 0750 if hardening is needed.<br>remove setgid from dir with symbolic representaion <br>drwxrws--- ie in octal 2750 change to safer nonsetgid<br>drwxrwx--- ie in octal 0750<br>with<br>chmod 0750 dirname<br><br>Usual ownership requirements apply.<br>Note it is possible to get uppercase S appearing in ls -l output if setgid is set but no execute permissions are set. it means setgid is ineffective.DenariusMon, 31 Jan 2005 13:02:51 -0000